package demo3;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User:
 * Date: 2024-06-18
 * Time: 16:05
 */
public class Computer {

    public void open(){
        System.out.println("开机");
    }

    public void close(){
        System.out.println("关机");
    }

    public void useUsbDevice(USB usb){
        usb.openDevide();

        if(usb instanceof Mouse){
            Mouse mouse = (Mouse)usb;
            mouse.click();
        }else{
            KeyBoard keyBoard = (KeyBoard)usb;
            keyBoard.input();
        }

        usb.closeDevide();

    }
}
